Maintenance – First Co DFCH Ductless Fan Coil Upflow / Horizontal Heat Pump or DX - 1.5 to 2.5 tons User Manual
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L2481
THERMOSTAT WIRING
AIR LOUVER ADJUSTMENTS
SYSTEM START-UP
1) Mounting location of thermostat should be on an interior wall
approximately 4-5 feet above the floor, which will not be
subjected to drafts and is not in the direct path of the
discharge airstream of the unit.
2) Make sure 5/8" snap bushing has been installed in 5/8"
knockout on cabinet wrapper to protect low voltage wiring.
Route thermostat wire through bushing and raceway to the
low voltage junction box.
3) Wire low voltage circuit as indicted on unit wiring diagram.
For units without electric heat option, do not connect thermo-
stat wiring to "W" terminal at thermostat or to "W" lead (white)
at low voltage junction box.
The discharge air louvers may be adjusted in one or several
positions to direct airflow to one or more areas of the room.
To adjust, pull louver straight out from recessed position and
rotate louver to desired direction then reinsert into recessed
position.
Note: Do not pull louver out further than required during
adjustment for spring may become stretched.
1) Prior to start-up, inspect the blower to assure the wheels turn
freely without rubbing on the housing.
2) This fan coil is equipped with a 3-speed motor which gives
the consumer the option of High-Med or Med-Low fan
speeds. The unit is factory set at High-Med, however if
installation requires a quieter application, remove blower/
motor wiring plug and insert into lower socket for Med-Low
speeds.
Note: If unit has electric heat, refer to wiring diagram on
unit for proper fan speed combination.
WARNING: All panels must be installed before operat-
ing unit.
3)
System check
- set thermostat system switch to "Off"
position and fan switch to "Auto" position. Apply power to
both the indoor and outdoor units.
4) Set fan switch to "On", fan should operate.
5) Return fan switch to "Auto" position. Set system switch to
"Cool" and lower thermostat set point to coldest setting.
Outdoor unit should energize as well as fan coil.
6) Set system switch to "Heat" and raise thermostat to a set
point warmer than room temperature. Outdoor unit should
energize as well as fan coil. If unit has electric heat, raise
thermostat to the warmest set point, within a minute the
electric heat should energize.
7) Return system switch to off position.
The only maintenance required to be performed is to keep the
air filter clean. Allowing dust to form on the filter will eventually
cause the unit to loose efficiency. Once a month check and
clean filter if required.
The filter is a permanent type and may be removed and
washed with a garden hose. Filter should be completely dry
before reinstalling.
MAINTENANCE